304 stainless steel pipe stainless steel pipe classification there are many, the first is seamless and straight seam welded 304 stainless steel tube, followed by basic classification structure 304 stainless steel pipes and industrial fluid transport 304 stainless steel tube. There is a division of the national standard, Japanese standard, American Standard and the like. Steel numbers and representation ① chemical element with the symbol of international and national symbols to represent the chemical composition, using the Arabic alphabet to represent the content: such as: China, Russia 12CrNi3A ② with a fixed number of digits to represent the steel type series or digital; as : The United States, Japan, 300 series, 400 series, 200 series; ③ with the Latin alphabet and numbers sequence consisting of stainless steel pipe, stainless steel tube 304 use only that is the most widely used stainless steel, heat-resistant steel. For food production equipment, past through chemical equipment, nuclear energy, the chemical composition of .304 stainless steel pipe specifications C Si Mn PS Cr Ni (nickel) MoSUS304 ≤0.08 ≤1.00 ≤2.00 ≤0.05 ≤0.03 18.00-20.00 8.25 ~ 10.50 Products by GB GB / T14976-2002 (fluid transport stainless steel seamless pipe), GB / T14975-2002 (structure seamless stainless steel), GB / T13296-91 (boiler, heat exchanger with stainless steel seamless pipe), decorative welded stainless steel pipes (GB / T 18705-2002) 304 stainless steel pipe _ Shengda Po-commerce (certified) _ stainless steel pipe provided by the Tianjin Shengda Bao Jie Trading Company. Bao Jie Tianjin Shengda Trading Company (www.sdbjsm.com) (http://www.sdbjsm.com) is Tianjin, hardware leader, over the years, the company implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Shengda Po-commerce leader in the staff warmly welcome all inquiries negotiations to create Shengda Po-commerce a better future. You can also access (http://www.sdbjsm.com/supply_details_36472943.html), for more information about the company.